Flat bed knitting machine



FIG. 1 is a front elevational view of a flat bed knitting machine showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side elevational view of one side thereof;

FIG. 4 is a side elevational view of an opposite side thereof; and,

FIG. 5 is a perspective view thereof showing the front, top and said opposite side. 

The ornamental design for a flat bed knitting machine, as shown and described. 